Home / 86,317.80-129,466.17-23,142.66

Finding the Fourth Proportional to 86,317.80, 129,466.17 and 23,142.66

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Solution

The fourth proportional to 86,317.80, 129,466.17 and 23,142.66 is: 34,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,317.80 : 129,466.17 = 23,142.66 : x
  2. Step 2: Convert to fraction form
    86,317.80/129,466.17 = 23,142.66/x
  3. Step 3: Cross multiply
    86,317.80x = 129,466.17 × 23,142.66
  4. Step 4: Simplify right side
    86,317.80x = 2,996,191,553.81
  5. Step 5: Solve for x
    x = 2,996,191,553.81/86,317.80
  6. Step 6: Final answer
    x = 34,711.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.